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W2K Pro Slowing Down with Dos Apps

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macaw

Technical User
Apr 14, 2002
56
US
Anybody know of a work around for this problem?
I have to multitask with dos based programmable logic controllers (PLC) in a machine environment and when I do this everything starts to crawl.
Any ideas?
 
If you are using any DOS programs in Windows NT4/2000/XP DOS sessions/boxes, there are a few things you can do to increase their performance and/or stability.
These tips are applied by using the respective DOS program's PIF (Program Information File) Editor: right-click on the "[Shortcut to] MS-DOS Program" of your choice -> select the Properties tab -> and then:

Click the Screen tab -> check the "Full-screen" box if your DOS application's video speed/screen redraw is slow when running in windowed mode.

Click the Program tab -> uncheck the "Windows NT" box, unless it is required by your DOS program to run properly.

Click the Program tab -> uncheck the "Compatible Timer Hardware" box, unless required by specific DOS programs that access the computer CMOS timer to function.

If DOS programs running in windowed mode seem to freeze (pause) periodically -> click the Misc tab -> disable the "Idle Detection" box.

If your DOS program allows printing -> select LPTx as Printer port (replace x with your printer port number, usually LPT1), because most DOS apps access the printer hardware (through Int17 hex) directly this way.
Finally, click OK/Apply to save the new PIF settings.

Mohamed Farid
Know Me No Pain , No Me Know Pain !!!
 
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